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公开(公告)号：US11828113B2
公开(公告)日：2023-11-28
申请号：US17416944
申请日：2019-12-19
发明人： Luiz Carlos De Lemos Junior , Andre Ramiro Amorim , Gustavo Queiroz Hepner , Frederico Nicoletti de Fraga , Joao Carlos Carvalho Gouveia , Ivan Carlos Pimentel da Cruz , Yann Brouard , Daniel Karunakaran
IPC分类号： E21B17/08 , E21B17/01 , E21B33/038 , E21B41/10
CPC分类号： E21B17/085 , E21B17/012 , E21B33/038 , E21B41/10
摘要： An end fitting for a subsea riser comprises an engagement head to be engaged with a subsea foundation in a vertically downward longitudinal direction. A structure of the end fitting surrounds a longitudinally extending flow axis and is arranged to bear a tensile load on a load path extending longitudinally from the engagement head parallel to the flow axis. The structure includes a pivot joint assembly having a first part attached to or integral with the engagement head and a second part pivotable relative to the first part about a centre of rotation substantially aligned with the flow axis. The structure can be fixed to the engagement head or removably attached to the engagement head. The engagement head supports an upwardly facing connector hub that is offset laterally from the flow axis. A connector pipe in fluid communication with the connector hub extends from the flow axis to the connector hub. A counterweight is opposed to the connector hub and the connector pipe about the flow axis.
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公开(公告)号：US11448341B2
公开(公告)日：2022-09-20
申请号：US16467947
申请日：2017-12-08
摘要： An in-line accessory structure for a subsea pipeline has an elongate pipe section arranged to be integrated into the pipeline, hence defining a flow axis through the structure. A branch has a lower end in fluid communication with the pipe section and an upper end in fluid communication with a connector hub. The structure further has a subsea foundation such as a mudmat, arranged to support the structure installed orientation. When the structure is in that orientation, the branch inclines inwardly from its lower end toward its upper end in a transverse direction, toward an upright longitudinal plane containing the flow axis.
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公开(公告)号：US20220081977A1
公开(公告)日：2022-03-17
申请号：US17416944
申请日：2019-12-19
发明人： Luiz Carlos De Lemos Junior , Andre Ramiro Amorim , Gustavo Queiroz Hepner , Frederico Nicoletti de Fraga , Joao Carlos Carvalho Gouveia , Ivan Carlos Pimentel da Cruz , Yann Brouard , Daniel Karunakaran
IPC分类号： E21B17/08 , E21B17/01 , E21B33/038 , E21B41/10
摘要： An end fitting for a subsea riser comprises an engagement head to be engaged with a subsea foundation in a vertically downward longitudinal direction. A structure of the end fitting surrounds a longitudinally extending flow axis and is arranged to bear a tensile load on a load path extending longitudinally from the engagement head parallel to the flow axis. The structure includes a pivot joint assembly having a first part attached to or integral with the engagement head and a second part pivotable relative to the first part about a centre of rotation substantially aligned with the flow axis. The structure can be fixed to the engagement head or removably attached to the engagement head. The engagement head supports an upwardly facing connector hub that is offset laterally from the flow axis. A connector pipe in fluid communication with the connector hub extends from the flow axis to the connector hub. A counterweight is opposed to the connector hub and the connector pipe about the flow axis.
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公开(公告)号：US20200224503A1
公开(公告)日：2020-07-16
申请号：US16647068
申请日：2018-09-14
发明人： Luiz Carlos De Lemos Junior , Gustavo Queiroz Hepner , Andre Ramiro Amorim , Joao Carlos Carvalho Gouveia , Frederico Nicoletti de Fraga , Ivan Carlos Pimentel da Cruz , Daniel Karunakaran
摘要： A pliant link to mitigate fatigue-inducing motion of a subsea catenary riser has an articulated spine having a longitudinal series of interconnected rigid segments. The spine can be coupled to upper and lower sections of the riser to transmit loads along the riser through the link on a load path that extends through the segments. The link also has a pliant pipe terminating in end fittings that can be joined, respectively, to the upper and lower sections of the riser for fluid communication along the riser through the link.
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公开(公告)号：US20200088320A1
公开(公告)日：2020-03-19
申请号：US16467947
申请日：2017-12-08
摘要： An in-line accessory structure for a subsea pipeline comprises an elongate pipe section arranged to be integrated into the pipeline, hence defining a flow axis through the structure. A branch has a lower end in fluid communication with the pipe section and an upper end in fluid communication with a connector hub. The structure further comprises a subsea foundation such as a mudmat, arranged to support the structure in an installed orientation. When the structure is in that orientation, the branch inclines inwardly from its lower end toward its upper end in a transverse direction, toward an upright longitudinal plane containing the flow axis.
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